The air all around us is a mixture of gasses containing nitrogen, oxygen, carbon dioxide, argon and water vapor. If the partial pressure of nitrogen is 1.3 atm, the partial pressure of oxygen is 1824 mmHg, the partial pressure of carbon dioxide is 247 torr, the partial pressure of argon is 0.015 atm, and the partial pressure of water vapor is 53.69 kPa. What is the total pressure in units of atmospheres (atm)?